1211023001222 has 8 divisors (see below), whose sum is σ = 1822022522472. Its totient is φ = 603682160400.

The previous prime is 1211023001197. The next prime is 1211023001239. The reversal of 1211023001222 is 2221003201121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1211023001222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914669279 + ... + 914670602.

It is an arithmetic number, because the mean of its divisors is an integer number (227752815309).

Almost surely, 2^{1211023001222} is an apocalyptic number.

1211023001222 is a deficient number, since it is larger than the sum of its proper divisors (610999521250).

1211023001222 is a wasteful number, since it uses less digits than its factorization.

1211023001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829340214.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1211023001222 its reverse (2221003201121), we get a palindrome (3432026202343).

The spelling of 1211023001222 in words is "one trillion, two hundred eleven billion, twenty-three million, one thousand, two hundred twenty-two".